Since I had never heard of the Sharptype plugin, I was curious about it. I downloaded and installed the demo. When it did not appear in any of PSP9's Effects menus, I wrote a note to the company. Here's is the response:

You can find the plug-ins path of your Photoshop or any compatible host (e.g. C:\Program Files\Adobe\Photoshop CS\Plug-Ins) and copy it. You must choose the correct directory, or you cannot get Sharptype recognized by Photoshop and any compatible host.

But currently, Sharptype cannot support for Paint Shop Pro. We used the Photoshop CS SDK to build the Sharptype, but the Paint Shop Pro cannot support this version. You can try another host, such as Fireworks or Painter.

This morning I received a note from Sharptype explaining that they have fixed the problem with their plugin not being compatible with PSP9. I downloaded the demo version and gave it another try. It now seems to work correctly.